"We won't take this lying down," Alannah Hurley, the executive director of United Tribes of Bristol Bay, which represents Native opponents of the mine, told Alaska Dispatch News.

In May, the Trump administration entered into a settlement with a Canadian company that wants to mine for gold and copper within the the largest sockeye salmon fishery in the world. That's a major turnaround from the Obama era, when the project had effectively been put on hold due to concerns raised by tribes, non-Native fisherman and other groups.